:root{--blue:#0000aa;--border:#b9b9b9;--muted:#666}*{box-sizing:border-box}body{margin:0;background:#fff;color:#222;font:14px/1.45 Arial,Helvetica,sans-serif}a{color:var(--blue)}button,input,select,textarea{font:inherit}button{cursor:pointer;padding:4px 13px;border:1px solid #999;border-radius:3px;background:linear-gradient(#fff,#e4e4e4);color:#222}button:disabled{cursor:wait;opacity:.65}input,select,textarea{border:1px solid #aaa;border-radius:2px;padding:5px;background:white;color:#222}input:focus,select:focus,textarea:focus{outline:2px solid #719bc3;outline-offset:1px}.page{max-width:1200px;width:calc(100% - 48px);margin:0 auto}.header{display:flex;justify-content:space-between;align-items:center;min-height:104px;padding:16px 2px}.wordmark{font:bold 38px/1 Arial,sans-serif;text-decoration:none;letter-spacing:-2px}.wordmark>span:first-child{color:#2675b8}.wordmark>span:nth-child(2){color:#222}.wordmark small{display:block;font:10px/2 Arial,sans-serif;letter-spacing:2px;color:#666;margin-top:5px}.account{display:flex;gap:8px;align-items:center;color:var(--blue)}.link-button{border:0;background:none;padding:0;color:var(--blue);text-decoration:underline}.main-nav{border:1px solid #bbb;border-radius:6px;padding:11px 16px;display:flex;gap:25px;align-items:center;font:13px Arial,sans-serif;min-height:44px}.main-nav>a{color:#222;text-decoration:none}.main-nav .selected{font-weight:bold}.mirror-label{margin-left:auto;color:#777;font-size:12px}.tabs{display:flex;gap:19px;padding:18px 8px 6px;border-bottom:1px solid #ddd;margin-bottom:24px}.tabs a{font-size:13px;text-decoration:none;color:#222;padding-bottom:5px}.tabs a.active{font-weight:bold;border-bottom:3px solid #777}.layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;align-items:start}.panel{border:1px solid var(--border);border-radius:6px;margin-bottom:20px;overflow:hidden}.panel>h2,.panel-heading{font-size:16px;color:#3b5998;font-weight:bold;margin:0;padding:8px 12px;border-bottom:1px solid var(--border);background:#f4f4f4}.panel-body{padding:10px 14px}.panel-body p{margin:6px 0 12px}.contest-state{text-align:center;font-weight:bold;color:#555}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px;text-align:center}th{background:#f3f3f3;font-weight:bold}td,th{padding:8px 7px;border:1px solid #ddd}tr:last-child td{border-bottom:0}th:first-child,td:first-child{border-left:0}th:last-child,td:last-child{border-right:0}.problem-name{text-align:left}.problem-name>a{font-size:14px}.problem-meta{display:block;font-size:11px;color:#666;margin-top:2px}.problem-letter{width:45px}.problem-row.solved{background:#e6f6df}.problem-row.failed{background:#fde4e4}.verdict-accepted{color:#008000;font-weight:bold}.verdict-failed{color:#c00}.verdict-pending{color:gray}.verdict-label{white-space:nowrap}.small{font-size:11px;color:#666}.empty{padding:28px;text-align:center;color:#777}.filters{display:flex;gap:12px;align-items:end;flex-wrap:wrap;padding:12px}.filters label{display:flex;gap:4px;flex-direction:column;font-size:12px}.filters input{width:160px}.statement{font:16px/1.5 "Times New Roman",Georgia,serif;padding:8px 14px 24px}.problem-header{text-align:center;margin-bottom:24px;font:14px/1.5 Arial,sans-serif}.problem-header h1{font:normal 24px/1.3 Arial,sans-serif;margin:0 0 8px}.problem-header .personal-badge{display:inline-block;margin-top:8px;font-weight:bold}.statement h1{font-size:24px}.statement h2,.statement h3{font:bold 18px Arial,sans-serif;margin:22px 0 8px}.statement p{margin:12px 0}.statement img{max-width:100%;height:auto}.statement pre{font:13px/1.5 Consolas,"Liberation Mono",monospace;white-space:pre;overflow-x:auto;padding:8px;margin:0}.statement table{font-family:inherit}.sample{border:1px solid #888;margin:14px 0;font-family:Arial,sans-serif}.sample-header{display:flex;align-items:center;justify-content:space-between;background:#eee;border-bottom:1px solid #aaa;padding:4px 7px;font-weight:bold;font-size:14px}.sample-header.output{border-top:1px solid #aaa}.copy-button{font-size:11px;padding:1px 7px;font-weight:normal}.problem-actions{display:flex;gap:12px;justify-content:space-between;margin-bottom:15px}.problem-state.solved{border-top:4px solid #8ac778}.problem-state.failed{border-top:4px solid #e69999}.submit-form{padding:14px}.submit-form 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30px);padding:24px;background:white;color:#222}dialog::backdrop{background:#0004}#username-dialog{width:420px}#username-dialog h2{font-size:20px;margin-top:0}#username-dialog label{display:block;margin-bottom:5px}#username-dialog input{width:100%}#source-dialog{width:900px;max-height:90vh}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:14px}.dialog-heading h2{font-size:18px;margin:0}.dialog-heading button{font-size:22px;padding:0 10px}.source-code,.diagnostic{font:13px/1.5 Consolas,"Liberation Mono",monospace;white-space:pre;overflow:auto;background:#f7f7f7;border:1px solid #ddd;padding:12px;max-height:55vh}.diagnostic{white-space:pre-wrap;max-height:180px}.source-summary{display:flex;gap:12px;flex-wrap:wrap;font-size:13px}.skip-link{position:absolute;left:10px;top:-50px;background:white;padding:10px;z-index:10}.skip-link:focus{top:10px}:focus-visible{outline:2px solid #2675b8;outline-offset:3px}[hidden]{display:none!important}@media(max-width:900px){.layout{grid-template-columns:minmax(0,1fr)}.sidebar{display:none}.page{width:calc(100% - 24px)}.header{min-height:90px}.wordmark{font-size:32px}}@media(max-width:520px){.header{align-items:start;gap:15px}.account{flex-direction:column;align-items:end;font-size:12px;padding-top:8px}.mirror-label{display:none}.tabs{gap:20px;margin-bottom:16px}.main-nav{padding:10px 12px}.statement{padding:8px 8px 20px}.form-row{flex-direction:column}.upload-row{align-items:start;flex-direction:column}td,th{padding:7px 5px}.problem-actions{font-size:12px}.filters input{width:135px}}@media print{.header,nav,.sidebar,.submit-panel,.problem-actions,footer,.copy-button{display:none}.page{width:100%;max-width:none}.layout{display:block}.panel{border:0}.statement{padding:0}.statement pre{white-space:pre-wrap}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* Matched to the user's saved Codeforces HTML and official s/85648 CSS. */
@font-face{font-family:Cuprum;src:url('/static/vendor/cf/cuprum.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:'PT Sans Narrow';src:url('/static/vendor/cf/pt-sans-narrow-bold.ttf') format('truetype');font-weight:700;font-display:swap}
html{font-size:10px}body{font:14px/normal Verdana,Arial,sans-serif;margin:3px 8px}.page{width:100%;max-width:1200px;padding-top:10.5px}.header{display:flex;min-height:70px;padding:0;margin:0 14px;align-items:start}.cf-logo{display:block;width:277.5px;height:65px;max-width:100%;object-fit:contain}.account{display:block;text-align:right;font:14px/21px Verdana,Arial,sans-serif}.language-flags{display:flex;justify-content:end;gap:4px;height:26px}.language-flags img{width:24px;height:24px}.account-links{white-space:nowrap}.main-nav{border:0;border-radius:0;padding:7px 0 0;margin:0 14px;height:42px;min-height:0;gap:18px;align-items:start;position:relative}.main-nav>a{font:15px/22px Cuprum,sans-serif;text-transform:uppercase;padding-top:5px;color:#000}.main-nav>a.selected{font-weight:normal;border-bottom:3px solid #3b5998;padding-bottom:1px}.site-search{margin-left:auto;padding-top:4px}.site-search input{width:126px;height:20px;padding:1px 4px 1px 20px;font:10px/16px Verdana,sans-serif;background:#f4f4f4;border:1px solid #d4d4d4}.tabs{font-family:'PT Sans Narrow',sans-serif;gap:0;border-bottom:0;margin:13px 14px 14px;padding:0;height:23px;position:relative;align-items:start}.tabs a{font:700 12px/20px 'PT Sans Narrow',sans-serif;color:#000;text-transform:uppercase;padding:0 8px;position:relative;text-decoration:none;height:20px;border:0;white-space:nowrap}.tabs a.active{font-weight:700;border:1px solid #b9b9b9;border-radius:3px;background:linear-gradient(#fff,#dedede);padding:0 7px;line-height:18px}.layout{margin:0 14px;grid-template-columns:minmax(0,1fr) 280px;gap:28px}.panel{margin-bottom:21px;border-radius:6px;line-height:normal}.sidebar .panel>h2{background:white;padding:3px 7px 6px;font:700 15px/normal Verdana,Arial,sans-serif;color:#3b5998}.panel-body{line-height:1.4;padding:10px 14px}.contest-state{font-size:15px;color:#3b5998}.datatable-panel{background:#e1e1e1;border:0;padding:0 3px 3px}.datatable-panel>h2{font:normal 14px/normal Verdana,sans-serif;color:#222;padding:4px 3px 0;background:#e1e1e1;border:0}.datatable-panel .table-scroll{background:white;margin-top:4px;border-radius:5px 5px 0 0}.datatable-panel th{background:white}.datatable-panel td,.datatable-panel th{font:13px/normal Verdana,sans-serif;padding:5.2px;border:1px solid #e1e1e1}.datatable-panel tbody tr:nth-child(even){background:#f8f8f8}.datatable-panel .problem-name{height:41px;text-align:left;padding-right:150px;position:relative}.problem-name>a{font:13px Verdana,sans-serif}.problem-meta{position:absolute;right:6px;top:6px;font:10px/14px Verdana,sans-serif;text-align:right;width:140px}.problem-letter{width:56px}.problem-row.solved{background:inherit}.problem-row.failed{background:inherit}.problem-row.solved .problem-letter{border-left:6px solid #d4edc9}.problem-row.failed .problem-letter{border-left:6px solid #ffe3e3}.problem-row.solved td:last-child{background:#d4edc9}.problem-row.failed td:last-child{background:#ffe3e3}.statement{font:14px/21px 'Helvetica Neue',Helvetica,Arial,sans-serif;margin:7px;padding:0 0 14px}.problem-state{border:0;border-radius:0}.problem-state.solved{border-top:3px solid #d4edc9}.problem-state.failed{border-top:3px solid #ffe3e3}.problem-header{display:block;min-height:0;margin:0 0 14px;padding:0;font:14px/21px 'Helvetica Neue',Helvetica,Arial,sans-serif}.problem-header h1{font:normal 21px/31.5px 'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 0 7px}.statement h2,.statement h3{font:bold 16.1px/24.15px 'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 0 0}.statement p{margin:0 0 14px}.statement ul{list-style:disc outside;margin:14px 0}.statement li{margin-left:42px}.sample{margin:0 0 14px;border:1px solid #888}.sample-header{background:white;text-transform:lowercase;font:bold 16.38px/20.475px Consolas,'Lucida Console',monospace;padding:3px;border-bottom:1px solid #888}.sample pre{font:12.6px/15.75px Consolas,'Lucida Console',monospace;background:#efefef;padding:3px;margin:0}.copy-button{font:13px/13px Arial,sans-serif;color:#888;background:white;border:1px solid #b9b9b9;border-radius:0;padding:2px;text-transform:none}.problem-actions{font:11px Verdana,sans-serif;margin:0 7px 14px}.filters{background:white;margin-top:4px;font-family:Verdana,sans-serif}.verdict-accepted{color:#0a0}.verdict-failed{color:red}footer{font:14px/21px Verdana,sans-serif;margin-top:14px;padding-top:14px}.submit-panel>h2{background:white}.submit-form{font-family:Verdana,sans-serif}.form-row label,.submit-form>label{font-size:13px}.form-row select{font-size:13px}.notice{line-height:1.4}.source-summary{line-height:1.5}#source-dialog h3{font-size:16px;margin-top:15px}#username-dialog p{margin:12px 0}.source-code,.diagnostic{line-height:1.5}
@media(max-width:1024px){.main-nav{gap:14px}.site-search{display:none}.main-nav>a{font-size:14px}}
@media(max-width:900px){.layout{grid-template-columns:minmax(0,1fr)}.page{width:100%;padding-top:7px}.header,.layout{margin:0 6px}.main-nav{margin:0 6px;gap:14px;overflow-x:auto;white-space:nowrap}.tabs{margin:13px 6px 14px}.account{font-size:12px}.cf-logo{width:250px;height:auto}.datatable-panel .problem-name{padding-right:140px}.problem-meta{width:132px}}
@media(max-width:520px){.header{min-height:70px;gap:8px}.cf-logo{width:190px;height:auto}.account{font-size:10px}.account-links{white-space:normal}.language-flags{height:24px}.language-flags img{width:20px;height:20px}.main-nav{height:37px}.tabs a{font-size:12px}.datatable-panel .problem-name{padding-right:5px;min-width:115px;height:56px}.problem-meta{position:static;width:auto;text-align:left;font-size:9px;line-height:12px}.datatable-panel td,.datatable-panel th{font-size:11px}.problem-name>a{font-size:12px}.statement{font-size:14px;line-height:21px;margin:7px 0}.problem-header h1{font-size:21px}.problem-actions{margin-left:0;margin-right:0}.main-nav>a{flex-shrink:0}.source-summary{font-size:11px}}
.datatable-panel .act{width:70px;white-space:nowrap}.submit-icon{width:22px;height:22px;vertical-align:middle}.user-icon{width:16px;height:16px;vertical-align:middle}.favourite-button{border:0;background:none;padding:0;margin-left:9px;vertical-align:middle;line-height:16px}.favourite-button img{width:16px;height:16px}.problem-row.solved td.act{background:#d4edc9}.problem-row.failed td.act{background:#ffe3e3}.problem-row.solved td:last-child,.problem-row.failed td:last-child{background:inherit}.datatable-panel td:last-child{font-size:11px}.site-search input{background-image:url('/static/vendor/cf/magnifier-medium.png');background-repeat:no-repeat;background-position:2px 2px}.statement sub{font-size:75%;vertical-align:sub}
/* The source form follows the saved Submit Code table-form proportions. */
.submit-form{display:grid;grid-template-columns:115px minmax(0,1fr);gap:12px 20px;width:90%;margin:14px auto;padding:0 0 14px}.submit-form .form-row,.submit-form .form-row>div{display:contents}.submit-form label{font:14px/21px Verdana,sans-serif;text-align:right;margin:0;padding-top:3px}.submit-form select{width:min(300px,100%);height:25px;padding:1px;font:13px Verdana,sans-serif}.submit-form .source-input{height:370px;min-height:370px}.submit-form .upload-row{display:contents}.submit-form .upload-row input{width:100%;border:0;padding:0}.submit-form .hint,.submit-form .field-error{grid-column:2;margin:0}.submit-form button[type=submit]{grid-column:2;justify-self:start;height:28px;margin:0 14px 0;padding:0 14px;font:14px Verdana,sans-serif}.submit-panel>h2{background:white;color:#222;font-size:18px;border:0;padding:12px 14px}.submit-panel{border:0;overflow:visible}
@media(max-width:650px){.submit-form{display:block;width:100%;padding:0 7px}.submit-form .form-row{display:flex;gap:12px}.submit-form .form-row>div{display:block}.submit-form label{text-align:left;display:block;margin:10px 0 4px}.submit-form select{width:100%}.submit-form .upload-row{display:block}.submit-form .hint,.submit-form .field-error{margin:10px 0}.submit-form button[type=submit]{margin:0}.submit-form .source-input{height:280px;min-height:280px}}

/* Contest-specific header and standalone submission view. */
.site-brand{display:block;font:bold 29px/1 Verdana,Arial,sans-serif;letter-spacing:-1px;text-decoration:none;color:#222;padding-top:10px}.site-brand strong{color:#3b5998}.header{align-items:center}.tabs{margin-top:5px}.problem-actions{justify-content:flex-start;gap:18px}.katex-display{overflow-x:auto;overflow-y:hidden;padding:3px 0}.statement .katex{font-size:1.02em}.statement .katex-display{font-size:1.05em}

.source-editor{grid-column:2;width:100%;height:370px;border:1px solid #aaa;font:14px/normal Consolas,"Liberation Mono",monospace}
.submit-title{text-align:center;padding:1.5em 0 .5em;font:normal 1.25em/1.4 Verdana,Arial,sans-serif}.submit-contest-title{text-align:center;font:14px/21px Verdana,Arial,sans-serif}.submit-form button[type=submit]{grid-column:1/-1;justify-self:center;margin-top:10px}.tabs a:hover{color:#3b5998}

.verdict-label{text-decoration:none}.verdict-pending{color:gray}.verdict-accepted{color:#0a0}.verdict-failed{color:red}